CVE-2023-23076
📋 TL;DR
CVE-2023-23076 is a critical OS command injection vulnerability in ManageEngine Support Center Plus that allows attackers to execute arbitrary commands on the underlying operating system. This affects administrators and users with access to schedule creation functionality. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- ManageEngine Support Center Plus
📦 What is this software?
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
Manageengine Supportcenter Plus by Zohocorp
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with root/admin privileges, data exfiltration, ransomware deployment, and lateral movement across the network.
Likely Case
Unauthorized command execution leading to data theft, service disruption, and installation of backdoors or malware.
If Mitigated
Limited impact if proper network segmentation, least privilege access, and input validation are implemented.
🎯 Exploit Status
Exploitation requires authenticated access to schedule creation. Command injection via improper input validation in Executor component.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 11.1 or later
Vendor Advisory: https://www.manageengine.com/products/support-center/CVE-2023-23076.html
Restart Required: Yes
Instructions:
1. Download latest version from ManageEngine website. 2. Backup current installation. 3. Run installer/upgrade package. 4. Restart Support Center Plus service.
🔧 Temporary Workarounds
Disable schedule creation
allTemporarily disable schedule creation functionality until patching is complete
Network segmentation
allIsolate Support Center Plus server from critical systems and internet
🧯 If You Can't Patch
- Implement strict input validation and sanitization for schedule creation inputs
- Apply network segmentation and firewall rules to limit access to Support Center Plus
🔍 How to Verify
Check if Vulnerable:
Check Support Center Plus version in admin console or installation directoryCheck Version:
Check web interface admin panel or installation directory version fileVerify Fix Applied:
Verify version is 11.1 or later and test schedule creation functionality📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed schedule creation attempts
- Suspicious process creation from Support Center Plus
Network Indicators:
- Unexpected outbound connections from Support Center Plus server
- Command and control traffic patterns
SIEM Query:
source="supportcenter" AND (event="schedule_creation" OR event="command_execution")